Revert of Worker: Introduce per-global-scope task scheduler

third_party/WebKit/Source/core/loader/ThreadableLoaderTest.cpp

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/loader/ThreadableLoader.h"
 
 #include <memory>
-#include "core/dom/TaskRunnerHelper.h"
 #include "core/loader/DocumentThreadableLoader.h"
 #include "core/loader/ThreadableLoaderClient.h"
 #include "core/loader/ThreadableLoadingContext.h"
 #include "core/loader/WorkerThreadableLoader.h"
 #include "core/testing/DummyPageHolder.h"
 #include "core/workers/WorkerLoaderProxy.h"
 #include "core/workers/WorkerReportingProxy.h"
 #include "core/workers/WorkerThreadTestHelper.h"
 #include "platform/WaitableEvent.h"
 #include "platform/geometry/IntSize.h"
@@ skipping 307 matching lines @@
     DCHECK(worker_thread_);
     DCHECK(worker_thread_->IsCurrentThread());
     parent_frame_task_runners_->Get(TaskType::kNetworking)
         ->PostTask(BLINK_FROM_HERE, std::move(task));
   }
 
   void PostTaskToWorkerGlobalScope(
       const WebTraceLocation& location,
       std::unique_ptr<WTF::CrossThreadClosure> task) override {
     DCHECK(worker_thread_);
-    TaskRunnerHelper::Get(TaskType::kNetworking, worker_thread_.get())
-        ->PostTask(location, std::move(task));
+    worker_thread_->PostTask(location, std::move(task));
   }
 
   ThreadableLoadingContext* GetThreadableLoadingContext() override {
     return loading_context_.Get();
   }
 
   RefPtr<SecurityOrigin> security_origin_;
   std::unique_ptr<WorkerReportingProxy> reporting_proxy_;
   std::unique_ptr<WorkerThreadForTest> worker_thread_;
 
@@ skipping 535 matching lines @@
   // test is not saying that didFailAccessControlCheck should be dispatched
   // synchronously, but is saying that even when a response is served
   // synchronously it should not lead to a crash.
   StartLoader(KURL(KURL(), "about:blank"));
   CallCheckpoint(2);
 }
 
 }  // namespace
 
 }  // namespace blink